title: [Thermodynamical description of the concentration polarization in a membrane transport of non-electrolyte solution].
abstract: An expression for concentration polarization coefficient (chi) was derived from Kedem-Katchalsky equations. This expression contains the volume flux (Jvm), transport parameters of a membrane (omega m) and concentration boundary layers (omega 1, omega h). Calculations performed using the obtained expression showed that for a polymeric membrane with fixed transport properties, coefficient chi is a nonlinear function of concentration difference of solutions. This nonlinearity is related to the appearance of the convection instability that breaks symmetry of the l(h)/M/l(l) complex in relation to the gravitational direction.
authors.affiliation: Katedra Zdrowia Publicznego, Politechnika Czestochowska.
authors.forename: Jolanta
authors.initials: J
authors.lastname: Jasik-Slezak
authors.forename: Andrzej
authors.initials: A
authors.lastname: Slezak
mesh_terms: D008567:Membranes, Artificial; D008956:Models, Chemical; D017711:Nonlinear Dynamics; D011108:Polymers / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D012996:Solutions